Holybro Original Pixhawk PX4 Flight Controller (without GPS)

The most recent model in the popular Pixhawk flight controller family is called Pixhawk 4. It was created in partnership with Holybro and the PX4 team, is preconfigured with the most recent PX4 firmware (v1.7), and is optimised to run the entire Dronecode stack.

Compared to earlier models, the Pixhawk 4 has a new, smaller form factor, higher processing power, and twice as much RAM. It also has additional connectors for improved integration and expansion, new sensors with stronger temperature stability, integrated vibration isolation, and increased simplicity of use—the most recent version of PX4 (v1.7) comes pre-installed.

It has the most sophisticated ST Microelectronics CPU technology, Bosch and InvenSense sensor technology, and a NuttX real-time operating system, which together provide amazing performance, adaptability, and dependability for managing any autonomous vehicle.The microprocessor in the Pixwhawk 4 now has 512KB of RAM and 2 MB of flash memory. Developers may work more effectively and productively with greater power and RAM available to them. On the autopilot, more intricate models and algorithms can be used.

On-board IMUs that are high-performing and low-noise are made for stabilisation applications. All sensor data-ready signals are routed to independent interrupt and timer capture pins on the autopilot, allowing sensor data to be precisely time-stamped. More precise readings are made possible by recently developed vibration isolations, which improves overall flight performance for vehicles.

Additional sensors and SPI-interfaced payloads can be added thanks to the two external SPI buses and the six related chip select lines. Two of the four I2C buses are set aside for external usage, while the other two are grouped together with serial ports to accommodate GPS/compass modules.
For developers working with corporate research labs, startups, and academia (research, professors, students), the Pixhawk 4 autopilot development kit is ideal.

Features:

1. Main FMU Processor: STM32F76 (32 bit ARM® Cortex® M7, 216 MHz Processor running NuttX RTOS, more computing power and 2X the RAM than previous versions)
2. Abundant connectivity options for additional peripherals (UART, I2C, CAN)
3. Redundant power supply inputs and automatic failover
4. External safety button for easy motor activation
5. New sensors with higher temperature stability
6. Multicolor LED indicator
7. Integrated vibrations isolation
8. High-power, multi-tone piezo audio indicator
9. microSD card for long-time high-rate logging
10. 16 PWM outputs
11. Increased ease-of-use: pre-installed with most recent PX4 (v1.8)

12. Interfaces 

    1. 8-16 PWM servo outputs (8 from IO, 8 from FMU)
    2. 3 dedicated PWM/Capture inputs on FMU
    3. Dedicated R/C input for CPPM
    4. Dedicated R/C input for Spektrum / DSM and S.Bus with analog / PWM RSSI input
    5. Dedicated S.Bus servo output
    6. 5 general purpose serial ports,2 with full flow control,1 with separate 1.5A current limit
    7. 3 I2C ports
    8. 4 SPI buses<
       • 1 internal high-speed SPI sensor bus with 4 chip selects and 6 DRDYs
       • 1 internal low noise SPI bus dedicated for Barometer with 2 chip selects, no DRDYs
       • 1 internal SPI bus dedicated for FRAM
       • Supports dedicated SPI calibration EEPROM located on the sensor module
       • 1 external SPI buses
    9. Up to 2 CANBuses for dual CAN with serial ESC, Each CANBus has individual silent controls or ESC RX-MUX control
    10. Analog inputs for voltage/current of 2 batteries
    11. 2 additional analog inputs

    Electrical data, Voltage Ratings:

    1. Power module output: 4.9~5.5V
    2. Max input voltage: 6V
    3. Max current sensing: 120A
    4. USB Power Input: 4.75~5.25V
    5. Servo Rail Input: 0~36V

    Environmental data, quality & reliability

    1. Operating temp. ~40~85C
    2. Storage temp. -40~85C
    3. CE
    4. FCC
    5. RoHS compliant (lead-free)